JOURNAL OF MEMBRANE SCIENCE
·
2026
·
IF 9
Ning Li,Jinke Wang,Shilin Nie,Yuanyuan wang,Leixin Yang,Ge Wang,Yuchao Ma,Dengkun Shu,Chenyang Li,Kaihua Li,Chen Luo,Bowen Cheng
The escalating demand for carbon capture has heightened interest in membrane-based gas separation technologies. Nevertheless, conventional polymeric membranes are constrained by plasticization and the trade-off between permeability and selectivity. In this study, we proposed a slightly branch-structure design strategy to construct branched polyimide (PI), which significantly enhances gas separation performance and anti-plasticization properties. With the incorporation of branched agent, the linear PI converts to branched PI, which suppresses chain dense packing and provides more free volume elements. Therefore, the branching architecture effectively restricts segmental mobility and reinforces interchain rigidity of PI, leading to significantly improved plasticization resistance from 16 atm to 30 atm. Interestingly, with the increase of rigid and free volume, the permeability and selectivity improved simultaneously in branched PI. Specifically, compared with pristine PI, the CO 2 permeability and CO 2 /CH 4 selectivity are increased by 139.7 % and 20 % in branched PI with 5wt% modification, respectively. Our findings proposed a simple and effective strategy for designing industrial polymers with improved performance and anti-plasticization properties for practical applications in gas separation membranes.
✓ 已验证
产品关联
DOI
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2026
·
IF 4.6
Yuxuan He,Jiayi Wei,Ming Cai,Junpeng Xia,Boheng Song,Jinxin Cheng,Xuanyu Sha
The performance of surface-enhanced Raman scattering (SERS) hinges on plasmonic hot spots that are both abundant and spatially uniform. Here, we propose a ligand-regulated, interface-confined growth strategy: on a bowl-like mesoporous polydopamine (PDA) scaffold, the ammoniacal silver precursor [Ag(NH 3 ) 2 ] + first forms a surface coordination layer with catechol and amine sites on PDA, lowering the activity of free Ag + and enriching Ag(I) at the interface, thereby shifting nucleation from homogeneous in the bulk to interface-confined. The ensuing constrained growth suppresses coalescence/bridging and excessive coarsening, yielding Ag nanoparticle arrays with controlled size, tunable interparticle gaps, and high spatial uniformity, and producing dense yet discrete coverage across both the inner and outer interfaces of the bowl. The concave curvature and dual-interface connectivity provide continuous coupling pathways and abundant adsorption sites, establishing a three-dimensional continuous hot-spot network. Correlative multi-technique characterization and spectroscopic analyses (SEM, EDS mapping, UV–Vis, XPS) elucidate the structure-optical-performance relationship, revealing a sparse-to-dense optimal regime and a coalescence-induced degradation regime, and identifying a precursor concentration of 50 mM as the optimal window. The resulting substrate exhibits good reproducibility for R6G (RSD ≈ 10.99 %) and affords clear molecular fingerprinting and linear quantification for pesticide analysis, with limits of detection of 55 ng mL −1 for methyl parathion and 0.209 ng mL −1 for thiram. This template-free, mild, and generalizable strategy provides a scalable route to three-dimensional plasmonic SERS substrates, leveraging PDA surface chemistry to prevent Ag aggregation at the source while constructing continuous hot spots networks.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 5.6
Yanhu Li,Qinhe Pan,Kaixiang Shi,Quanbing Liu,Yanan Guo,Qingji Wang
Metal-organic-framework (MOF)-derived oxide is a promising gas-sensing material candidate because of its high surface area, porosity and structural diversity. Utilizing Aerosol-assisted chemical vapor deposition (AACVD), the fabrication of MOF-derived films performs characteristic morphology and controlled size, which greatly improve the gas-sensing performance. Herein, the heterojunction interface between SnO 2 nanorods and MOF-derived Co 3 O 4 nanoparticles was prepared by two step AACVD. Firstly, SnO 2 nanorods were directly grown on flat electrode. Subsequently, size-controlled MOF-derived Co 3 O 4 nanoparticles were coated on SnO 2 nanorods. The hydrogen sensors were developed based on the above sensing materials with different deposition time ( 0, 30, 40 and 50 min) to demonstrate gas-sensing performance. The Co 3 O 4 /SnO 2 -40 sensor exhibits a response value of 305 % to 100 ppm of H 2 at 310°C, which is 4.4 times of the SnO 2 sensor. Moreover, the Co 3 O 4 /SnO 2 -40 sensor retains a measurable response of 4 % even at an extremely low hydrogen concentration of 200 ppb. The superior sensing performance of this sensor can be attributed to the large surface area and the p-n heterojunction interface. Consequently, the construction of heterojunction via AACVD offers an approach for fabricating high performance hydrogen sensors.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2026
·
IF 9.5
Junzhou Men,Zeyu Wang,Chen Luo,Ai Zhang,Hui Xian,Tao Jiang,Yating Wang
To address the urgent demand for efficient solar-to-hydrogen conversion, a novel Cu-doped 3D ordered macroporous (3DOM) ZIF-8 photocatalyst was fabricated via polystyrene sphere templating coupled with a dual-solvent method. Systematic characterization confirmed the preservation of the ZIF-8 crystalline structure after ∼2 at% Cu2+ incorporation. The 3DOM framework amplified light absorption via slow-light effects, while Cu2+ doping narrowed the band gap and further intensified the slow-light phenomenon. The optimized Cu-3D-ZIF-325 exhibited a photocatalytic hydrogen evolution rate of 2233.2 µmol g−1 h−1, which is 29 times higher than that of pristine ZIF-8. This performance enhancement originated from synergistic mechanisms: EIS measurements revealed that Cu2+ sites improved charge separation, and the optimized band structure facilitated carrier transport; DFT calculations further verified that Cu2+ optimized the adsorption/dissociation of water and elevated the conduction band potential, strengthening the reductive driving force for H2 production. This work establishes a viable dual-modification strategy for high-efficiency MOF-based photocatalysts.
✓ 已验证
产品关联
DOI
高影响因子
Science Advances
·
2026
·Vol. 12
·期 1
·
IF 12.5
Yunqi Xiao,Shanyu Zhang,Xinmeng Gao,Tian Li,Hanhan Zhang,Panke Zhang,Shuo Huang
Oligosaccharides, polymers of covalently linked monosaccharides, are essential biomolecules mediating diverse biological and physiological processes. Despite their critical roles, the structural complexity of many oligosaccharides poses a notable challenge for comprehensive characterization, limiting our understanding of their biological functions. Nanopores as emerging single-molecule sensors offer promise for oligosaccharide structural analysis. Here, we demonstrate direct discrimination of diverse mono- and oligosaccharides using a hetero-octameric Mycobacterium smegmatis porin A (MspA) nanopore integrated with a single phenylboronic acid (PBA) adapter (MspA-90PBA). The high-resolution event signatures generated by MspA-90PBA enable structural analysis of complex oligosaccharides via hydrolysis into smaller fragments, which can be analyzed for either structure profiling or determination. Using a minimized reference database, we achieve structural determination of raffinose, stachyose, and verbascose through nanopore characterization of its hydrolyzed fragments followed by fragment assembly. This work establishes a framework for nanopore-based oligosaccharide analysis, combining single-molecule sensing with a fragment assembly strategy to address the long-standing challenge of glycan structural elucidation.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.7
Zehao Tan,Guiru Zhang,Enping Wang,Xiaojing Cheng,Jiewei Yin,Xiaohui Yan,Guanghua Wei,Shuiyun Shen,Liuxuan Luo,Junliang Zhang
Dual-metal single-atom catalysts (DACs) can break the electronic and structural symmetries of the M–N₄ unit and have attracted intensive attention. In this work, CoNi@CoNi–NCs were prepared via an impregnation-reduction method, which possess coexisting CoNi–NC DACs and encapsulated CoNi dilute alloy nanoparticles (NPs). After optimizing the Co/Ni atomic ratio, Co 10 Ni 1 @CoNi–NC exhibited superior oxygen reduction reaction (ORR) durability. After 30,000 accelerated durability test (ADT) cycles, the half-wave potential of CoNi@CoNi–NCs only decreased by 15 mV, which is significantly better than commercial Pt/C (72 mV). Zinc–air battery (ZAB) tests demonstrated that the Co 10 Ni 1 @CoNi–NC ZAB achieved the peak power density of 149.91 mW cm −2 , which is much higher than that of commercial Pt/C (122.65 mW cm −2 ). After 240 h of charge-discharge cycling, the Co 10 Ni 1 @CoNi–NC ZAB maintained stable voltage efficiency with only a 14.9% decay, which is much better than that of commercial Pt/C. Based on the advanced and comprehensive experimental and theoretical analyses, the enhanced ORR performance of Co 10 Ni 1 @CoNi–NC in alkaline conditions can be attributed to the following reasons. (1) The influence of trace amounts of nickel on the Co 2+ and Co N electronic structures. (2) The regular morphological structure increases the number of pores and enhances the utilization rate of active sites. (3) The unique carbon coated structure. (4) The synergistic effect between CoNi NPs and CoNi–NCs. This work helps to understand the interplay between NPs and DACs and provides guidance for the further development of non-noble metal ORR catalysts.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
·
2026
·
IF 3.1
Panpan Liu,Yiyi Shen,Mingyang Zhang,Zhiyuan Liu,Shuhui Wang,Zhiheng Liu,Nana Wang,Jiaying Zhang,Jing Li,Guanghui Qian,Chengyao Ma,Haitao Lv,Ying Liu
Kawasaki disease (KD) is an acute systemic vasculitis in children that can result in severe cardiac complications. This study utilized an integrated proteomic and metabolomic approach to explore molecular dynamics in cardiac tissue from a Candida albicans cell wall extract (CAWS)-induced KD mouse model. Echocardiography demonstrated significant left ventricular dysfunction in the CAWS group, as evidenced by reduced ejection fraction and fractional shortening, alongside histopathological signs of inflammatory cell infiltration. Multi-omics analysis revealed 206 differentially expressed metabolites (DEMs) and 155 differentially expressed proteins (DEPs) compared to PBS controls. Bioinformatics analysis highlighted substantial disturbances in glycerophospholipid metabolism, amino acid metabolism, fatty acid synthesis, and cofactor biosynthesis pathways, with concurrent upregulation of immune- and inflammation-related proteins. Integrated analysis revealed co-enrichment in cofactor biosynthesis, amino acid metabolism, and purine metabolism pathways, and a regulatory network of key molecules was established. These findings suggest that KD-induced cardiac injury involves significant metabolic reprogramming and immune-inflammatory activation, offering new insights into the pathogenesis and providing a theoretical basis for the development of biomarkers and therapeutic targets.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Laser & Photonics Reviews
·
2026
·
IF 10
Zhipeng Xu,Haoran Chen,Yue Liu,Xiang Zhou,Dechao Yu,Xiaobin Xie,Chunchao Hou,Bohua Dong,Lixin Cao,Chenghui Xia
Near-infrared-emitting copper-based I-III-VI quantum dots (QDs) hold significant promise for photonics and bioapplications, yet their broad photoluminescence (PL) emission severely limits color purity and device efficiency. Herein, we report a hierarchically staged synthesis that decouples and sequentially suppresses defect- and phonon-induced broadening. Starting with Zn-poor CuInSe 2 QDs via cation exchange, we introduce Zn 2+ alloying to passivate cation vacancies and homogenize composition, forming a defect-minimized core. Subsequent epitaxial overcoating with a thick ZnS shell strongly localizes excitons, evidenced by suppressed thermal quenching and dominant coupling to a higher-order longitudinal optical ( LO ) phonon mode of ZnS ( E LO ≈ 141 meV). This shifts recombination from defect-assisted to near-band-edge emission, yielding CuInZnSe/ZnS QDs with an ultranarrow linewidth of 111 meV, high PL quantum yield of 73%, and minimal Stokes shift of 42 meV at 977 nm. When integrated into luminescent solar concentrators, these QDs enable an optical efficiency of 8.81% and a power conversion efficiency of 2.79%, underscoring their practical utility. Beyond reporting materials, this work provides profound insights into the interplay of exciton confinement and defect engineering, establishing a general and instructive strategy for achieving high color purity in multinary QDs.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Si Yuan,Yuxian Xiao,Kai Xiong,Shiying Huang,Bo Zhang,Yuanyuan Guo,Hao Li,Meijin Zhang,Hailing Sun,Renfeng Dong,Laisheng Li,Yao Wang,Guofu Zhou
Electrowetting represents a promising approach for the precise manipulation of liquids at the microscale and possesses considerable potential for advancements in digital microfluidics. However, anti-penetration failures and interfacial gap defects in multilayer films markedly increase leakage current, which inevitably cause device failure, threatening a critical challenge for practical implementation of electrowetting devices. This study presents a fluorosilane molecular welding strategy to achieve atomic-scale chemical bridging at dielectric/hydrophobic interfaces. The approach demonstrates a peak leakage current of 330 pA/cm 2 , effectively reducing penetration current by 97.4%, while maintaining the average current fluctuations at an exceptionally low picoampere level. We elucidate the coupling effect between current leakage and failure in electrowetting displays and address this issue through a dual-barrier design, ultimately achieving a display device that maintains a stable aperture ratio of 67% without any microscopically observable electrode damage after 9 million cycles at potential engineering application level, even under accelerated aging conditions. This advancement contributes to the development of electrical breakdown resistance functional interfaces and improves the reliability of industrial devices, thereby benefiting emerging microfluidic applications such as reflective displays and dynamic microlenses.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2026
·
IF 11.3
Zhilong Xu,Kai Yu,Siyu Zhu,Yun Ju,Jing Zhao,Hong Zhang,Mingyi Wang,Jie Jiang,Jing He
Organophosphate diesters (di-OPEs) and hypochlorous acid (HOCl) are two typical indoor pollutants, which have been proved to negatively impact respiratory health. However, the underlying molecular mechanism of them acting on pulmonary phospholipids remains poorly understood. In this study, using 1-palmitoyl-2-oleoyl-sn-glycero-3-phospho-(1′-rac-glycerol) (POPG) as a model phospholipid, di-OPEs were found that can significantly amplify interfacial chemical damage induced by HOCl. This damage amplification effect can be observed in both alkyl- and aryl-di-OPEs, which shows concentration-dependence. This phenomenon can be attributed to two synergistic effects. Firstly, acidic phosphate group of di-OPEs lowers the system pH. This stabilizes HOCl in its undissociated neutral form, thereby preserving the highly oxidative reactivity of HOCl. Secondly, the lipophilicity of di-OPEs promotes their accumulation at the air-water interface, which elevates the H⁺ concentration in interfacial region. Such high interfacial concentration of H + aggravates the hydrolysis of POPG, thereby intensifying the overall chemical damage. Overall, this study offers a molecular level insight for clarifying the health implications of indoor di-OPEs in the presence of HOCl and lays the groundwork for evidence-based risk assessment.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED CATALYSIS A-GENERAL
·
2026
·
IF 4.8
Xiaofei Ma,Shijiao Hao,Hui Jiang,Weiqian Qi,Hefang Wang
La 2 O 2 CO 3 -Cu-Al mixed oxides (CL X A-LDO) were fabricated via the calcination of lanthanum carbonate-doped Cu-Al layered double hydroxides (LDHs) with unique wool-scale-like lamellar structures. CL X A-LDO were employed for the synthesis of dimethyl carbonate (DMC) via the transesterification of methanol with propylene carbonate (PC). Characterization via XRD, FT-IR, TG, and SEM confirmed that lanthanum carbonate-doped Cu-Al LDHs with unique wool-scale-like lamellar structures were successfully prepared. After calcination, these precursors transformed into La 2 O 2 CO 3 -CuO-Al 2 O 3 composites. CO 2 -TPD and XPS results indicate that CL 1.0 A-LDO-600 possesses abundant medium/strong basic sites and a favorable O II /O I ratio. Consequently, CL 1.0 A-LDO-600 exhibited a PC conversion of 68.44% and a DMC yield of 67.84% under mild conditions (80 °C, 2 h, catalyst loading 2.0 wt%, methanol/PC molar ratio = 10). Moreover, CL 1.0 A-LDO-600 demonstrated high stability, with only a modest activity loss (Δ PC = 6.2%) after six consecutive cycles. The kinetic analysis indicated a complex reaction mechanism. However, this behavior was effectively simplified to a pseudo-first-order reaction model, providing activation energies of Ea(k + ) = 47.17 kJ·mol -1 (forward) and Ea(k - ) = 44.46 kJ·mol -1 (reverse). The experimental data were systematically validated using a particle swarm optimization-backpropagation artificial neural network (PSO-BP) model. The hybrid model demonstrated superior predictive accuracy, achieving R 2 values of 0.9956 and 0.9916 for the training and testing sets, respectively, thereby outperforming the conventional BP model. This work provides fundamental insights into the rational design of LDHs-derived mixed oxide catalysts for sustainable DMC synthesis.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Lu Zheng,Saisai Ju,Xiong Li,Yongde Ma,Hongwei Zhang,Zhenping Cai,Yanning Cao,Kuan Huang,Lilong Jiang
Efficient capture of residual NH₃ from Haber-Bosch recycling gas is essential to improve process efficiency and reduce environmental impact. In this study, a series of sulfonated porous organic polymers (PTO-1S, PTT-1S, PTF-1S) were fabricated by a post-sulfonation strategy using phenolic hydroxyl-containing precursors to capture NH 3 . Comprehensive characterizations of the sulfonated derivatives demonstrated not only the successful grafting of –SO₃H groups, but more importantly, a cooperative effect with the native phenolic –OH groups. The optimized PTO-1S achieves an outstanding NH₃ capacity of 11.52 mmol/g (at 298.2 K and 1 bar), with particularly impressive performance at low pressures (5.56 mmol/g at 313.2 K and 0.03 bar), surpassing most reported adsorbents. Mechanistic studies revealed that this cooperation creates an optimal balance of strong chemisorption (–SO₃H) and reversible hydrogen bonding (–OH), which is identified as the origin of the high capacity and exceptional cycling stability (< 1% capacity loss/cycle). Besides, the sulfonated samples maintain excellent selectivity under simulated industrial conditions (NH₃/N₂/H₂ mixtures) and a rapid adsorption rate (90% saturation within 2 min), demonstrating their potential for practical NH₃ recovery applications.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）